SOLUTION: Find without using a calculator: (a) sin t, cos t, tan t, cot t, for t= -405 degrees

Algebra ->  Trigonometry-basics -> SOLUTION: Find without using a calculator: (a) sin t, cos t, tan t, cot t, for t= -405 degrees      Log On


   

Question 954968: Find without using a calculator:
(a) sin t, cos t, tan t, cot t, for t= -405 degrees
Answer by lwsshak3(11628) About Me  (Show Source):
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Find without using a calculator:
(a) sin t, cos t, tan t, cot t, for t= -405 degrees
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reference angle for -405˚=360-405=-45˚ (in quadrant IV)
sin t=-√2/2
cos t=√2/2
tan t=-1
cot t=-1